Cardiff Council's 'Usual Suspects' campaign carries the message: "There's no excuse for dropping litter."
The anti-grime crackdown will focus on three main points:
- Dog fouling
- Fly tipping
The council's waste team is also telling dog owners there is a fine of £75 if caught not cleaning up after their dogs.
More top news
A man has been banned from owning a dog after his Staffordshire Bull Terrier cross-breed bit a train guard.
A 31-year-old man has died despite efforts to save him after he became ill while swimming across a river.
Catch up with the latest episode of Coast & Country. This week the team are on Anglesey!